Neck brace



FIG. 1 is a perspective view of the neck brace;

FIG. 2 is a left-side view thereof;

FIG. 3 is a right-side view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines illustrate portions of the neck brace and form no part of the claimed design. 

The ornamental design for a neck brace, as shown and described. 